Unisex socks made of durable material are breathable, wick away sweat and stay in place all the time using Locked-In Fit technology. 3 pairs. The durable material wicks away sweat and dries really quickly. The new Locked-In Fit construction keeps the sock securely on the heel and allows it to be customized. Medium cushioning over the entire foot for comfort and protection. Mesh panels on the instep for greater breathability. Built-in arch support helps reduce foot fatigue.